Automatic weighing and screening mechanism sand processing centrifugal screening device and its weighing method

Abstract

The application discloses a kind of automatic weighing screening machine-made sand processing centrifugal screening equipment and its weighing method.The automatic weighing screening machine-made sand processing centrifugal screening equipment of the present application includes rotating drum, cylinder screen, side plate, drive mechanism and torque sensor, the inside of rotating drum is installed at least two cylinder screen and the inside of rotating drum is spaced into multiple independent chambers, the side of each cylinder screen is connected with corresponding side plate, the outside wall of side plate is connected with drive mechanism to drive cylinder screen to rotate and move transversely, drive mechanism is connected with torque sensor, angular acceleration sensor is installed on rotating drum, the weight of material on each cylinder screen is calculated by rotating cylinder screen.The automatic weighing screening machine-made sand processing centrifugal screening equipment proposed in the present application indirectly obtains the weight of machine-made sand on each level cylinder screen by obtaining angular velocity value and corresponding torque, and the weight is indirectly obtained by calculation, and the weighing method is simple and easy to operate, and the weighing efficiency is high.

Description

Technical Field

[0001] This invention relates to the field of manufactured sand processing technology, and in particular to an automatic weighing and screening centrifugal screening device and its weighing method for manufactured sand processing. Background Technology

[0002] With the increasing scarcity of natural sand resources, the use of manufactured sand to replace natural sand in concrete preparation has become an inevitable trend. Manufactured sand has the advantages of large output, uniform particle size, good particle shape, and reasonable gradation, which better meets daily needs. Manufactured sand refers to sand processed by sand making machines and other auxiliary equipment. The finished product is more regular and can be processed into sand of different shapes and sizes according to different process requirements. Then, according to the application range, manufactured sand is screened and sorted into different sizes.

[0003] However, existing manufactured sand screening equipment cannot achieve the function of automatic weighing while screening. When weighing, it is necessary to pour out the material screened in each layer one by one and then weigh the material screened in each layer one by one. Summary of the Invention

[0004] The main objective of this invention is to provide an automatic weighing and screening centrifugal screening device for processing manufactured sand, which facilitates the weighing of materials at each stage during screening.

[0005] To achieve the above objectives, the present invention provides an automatic weighing and screening centrifugal screening device for manufactured sand processing, comprising a rotating drum, a cylindrical screen, side plates, a drive mechanism, and a torque sensor, wherein...

[0006] The inside of the rotating drum is equipped with at least two cylindrical screens that divide the inside of the drum into multiple independent chambers. The side of each cylindrical screen is connected to a corresponding side plate. The outer wall of the side plate is connected to a drive mechanism to drive the cylindrical screen to rotate and move laterally. The drive mechanism is connected to a torque sensor. An angular acceleration sensor is installed on the rotating drum. The weight of the material on each cylindrical screen is calculated by rotating the cylindrical screen.

[0007] Preferably, the automatic weighing and screening centrifugal screening equipment for processing manufactured sand further includes an electrical box electrically connected to the drive mechanism and the angular acceleration sensor.

[0008] Preferably, the rotating drum is provided with a feed inlet and a discharge outlet, with the discharge outlet located on the side of the rotating drum away from the side plate.

[0009] Preferably, a support frame and a tilting mechanism are installed below the rotating drum, the tilting mechanism being used to lift one side of the rotating drum.

[0010] Preferably, the motor of the tilting mechanism is electrically connected to the electrical box.

[0011] Preferably, the axis of all cylindrical screens is coaxial with the axis of the rotating drum.

[0012] Preferably, the drive mechanism includes a motor.

[0013] Preferably, the weight of the material on the cylindrical screen is... Calculate using the following formula:

[0014] , ;

[0015] in, This represents the angular acceleration of the rotating drum. This represents the torque lost by the manufactured sand in the rotating drum. This indicates the torque of the cylindrical screen when it contains manufactured sand. This indicates the torque of the cylindrical screen when it is unloaded.

[0016] Preferably, the cylindrical screen has rectangular screen holes.

[0017] This invention further proposes a weighing method based on the above-mentioned automatic weighing and screening centrifugal screening equipment for manufactured sand processing, comprising the following steps:

[0018] When the cylindrical screens are not loaded with manufactured sand, the torque of each cylindrical screen under no-load conditions is obtained through a torque sensor. ;

[0019] The rotating drum is filled with manufactured sand, and the drive mechanism connected to the corresponding cylindrical screen is controlled to rotate to screen the manufactured sand.

[0020] When it is necessary to measure the weight of manufactured sand inside a cylindrical screen, the angular acceleration of the rotating drum is obtained. Torque of the cylindrical screen when containing manufactured sand According to the formula and Weight of computer-generated sand .

[0021] The automatic weighing and screening centrifugal screening equipment for manufactured sand processing proposed in this invention indirectly obtains the weight of manufactured sand on each level of cylindrical screen by acquiring the angular velocity value and the corresponding torque. This weighing method is simple and easy to operate, and has high weighing efficiency (no need to pour out the material, only need to rotate the cylindrical screen to obtain the torque when the material is placed). In addition, this automatic weighing and screening centrifugal screening equipment for manufactured sand processing has the advantages of simple structure, easy implementation, and stable and reliable operation. Attached Figure Description

[0022] Figure 1This is a schematic diagram of a preferred embodiment of the centrifugal screening equipment for automatic weighing and screening of manufactured sand processing according to the present invention.

[0023] In the diagram, 1-feed inlet, 2-discharge outlet, 3-angular acceleration sensor, 4-rotating drum, 5-cylindrical screen, 6-side plate, 7-torque sensor, 8-drive mechanism, 9-electrical box, 10-support frame, 11-tilting mechanism, 12-operation panel.

[0024] The realization of the objective, functional features and advantages of the present invention will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0025] It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

[0026] It should be noted that in the description of this invention, the terms "lateral," "longitudinal," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used solely for the convenience of describing the invention and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the invention. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0027] This invention proposes an automatic weighing and screening centrifugal screening device for processing manufactured sand.

[0028] In this preferred embodiment, refer to Figure 1 An automatic weighing and screening centrifugal screening device for manufactured sand processing includes a rotating drum 4, a cylindrical screen 5, side plates 6, a drive mechanism 8, and a torque sensor 7.

[0029] The inside of the rotating drum 4 is equipped with at least two cylindrical screens 5, which divide the inside of the rotating drum 4 into multiple independent chambers. The side of each cylindrical screen 5 is connected to a corresponding side plate 6. The outer wall of the side plate 6 is connected to a drive mechanism 8 to drive the cylindrical screen 5 to rotate and move laterally. The drive mechanism 8 is connected to a torque sensor 7. An angular acceleration sensor 3 is installed on the rotating drum 4. The weight of the material on each cylindrical screen 5 is calculated by rotating the cylindrical screen 5.

[0030] Furthermore, this automatic weighing and screening centrifugal screening equipment for processing manufactured sand also includes an electrical box 9 that is electrically connected to the drive mechanism 8 and the angular acceleration sensor 3.

[0031] In this embodiment, the rotating drum 4 is provided with a feed inlet 1 and a discharge outlet 2, with the discharge outlet 2 located on the side of the rotating drum 4 away from the side plate 6. Each cylindrical screen 5 corresponds to one discharge outlet 2.

[0032] Furthermore, a support frame 10 and a tilting mechanism 11 are installed below the rotating drum 4. The tilting mechanism 11 is used to lift one side of the rotating drum 4. When the tilting mechanism 11 is in the retracted state, it is at the same horizontal position as the support frame 10.

[0033] In this embodiment, the motor of the tilting mechanism 11 is electrically connected to the electrical box 9, and unified control is achieved through the electrical box 9. The electrical box 9 is equipped with an operation panel 12, which has four switch buttons: slow screening, fast weighing, tilting, and reset.

[0034] Specifically, in this embodiment, the axes of all cylindrical screens 5 are coaxial with the axis of the rotating drum 4. The drive mechanism 8 includes a motor.

[0035] Specifically, the weight of the material on the cylindrical screen 5 Calculate using the following formula:

[0036] , ;

[0037] in, This represents the angular acceleration of rotating drum 4. This represents the torque lost by the manufactured sand in the rotating drum 4. This indicates that the cylindrical screen 5 contains manufactured sand. This indicates the torque of the cylindrical screen 5 under no-load conditions.

[0038] The internal space of the rotating drum 4 is divided into different cavities by the side plate 6 and the cylindrical screen 5. The different cavities are driven to rotate by different motors, so that the torque data of each motor can be obtained separately, so as to measure the weight of the material on each cylindrical screen 5.

[0039] In this embodiment, the cylindrical screen 5 has rectangular screen holes. Because the manufactured sand contains long strips of sand after crushing, these strips can easily clog the traditional mesh structure during the screening process, which is not conducive to the screening process. Therefore, in this embodiment, the screen holes are rectangular.

[0040] The working process of this automatic weighing and screening centrifugal screening equipment for manufactured sand processing is as follows: A loader is used to pour sand and gravel into the feed inlet 1. During screening, the slow screening button on the control panel of the electrical box 9 is pressed, thereby starting the motor and driving the cylindrical screen 5 to move slowly and irregularly left and right to simulate vibration. Manufactured sand of different particle sizes is screened into different chambers through cylindrical screens 5 of different specifications. The above process completes the manufactured sand screening process.

[0041] During automatic weighing, press the quick weighing button on the control panel of electrical box 9 to start the motor, which drives the cylindrical screen 5 and side plate 6 to rotate rapidly around the entire circle. The torque sensor 7 is activated to collect the corresponding motor output torque, and the angular acceleration sensor 3 is activated to collect the angular acceleration of the rotating drum 4. The weight of the manufactured sand in each chamber is calculated using a formula. This process completes the automatic weighing of the manufactured sand. During discharge, press the tilt button on the control panel of electrical box 9. The tilting mechanism 11 rises to create a height difference, allowing the manufactured sand to be discharged from the discharge port 2. After all operations are completed, press the reset button on the control panel of electrical box 9 to return to the initial position.

[0042] The automatic weighing and screening centrifugal screening equipment for manufactured sand processing proposed in this embodiment has the following beneficial effects:

[0043] 1. Integrated Screening and Weighing Function: Unlike traditional equipment that requires separate screening and weighing (in existing technologies, weighing the screened sand requires emptying the manufactured sand from each stage before weighing each stage, or weighing the total weight of all manufactured sand before emptying the material), this invention integrates screening and weighing by installing ultrasonic sensors, a motor, and screens inside the rotating drum 4. This innovative integrated design simplifies the operation process and improves work efficiency.

[0044] 2. Multi-stage screening: The equipment of this invention uses multi-stage screens to screen manufactured sand of different particle sizes. Compared with traditional equipment, the innovative design of multi-stage screening can effectively separate multi-stage manufactured sand, meeting the demand for manufactured sand of different particle sizes.

[0045] 3. Automatic Weighing Technology: The equipment incorporates a torque sensor 7, an angular acceleration sensor 3, and a motor for automatic weighing. The angular acceleration sensor measures the angular acceleration of the rotating drum 4, the torque sensor 7 measures the output torque of the motor, the motor provides the input torque, and the torque is calculated based on the results to achieve automatic weighing. This automatic weighing technology replaces the traditional manual weighing method, improving the accuracy and efficiency of weighing.

[0046] 4. Innovation of the Tilting Mechanism 11: The device of this invention introduces a tilting mechanism 11 to control the tilting or inclination of the rotating drum 4, thereby controlling the flow and unloading of the manufactured sand. This innovative design of the tilting mechanism 11 makes the unloading process more convenient and efficient, reducing manual operation and time consumption.

[0047] 5. Multifunctional Operation Panel 12: The electrical box 9 of the equipment is equipped with an operation panel 12, which has four switch buttons for slow screening, fast weighing, tilting, and reset. This innovative design of the multifunctional operation panel 12 allows operators to select the appropriate operating mode according to their needs, providing a more flexible and convenient operating method.

[0048] This invention further proposes a weighing method for an automatic weighing and screening centrifugal screening device used in the processing of manufactured sand.

[0049] In this preferred embodiment, a weighing method based on the above-described automatic weighing and screening centrifugal screening equipment for manufactured sand processing includes the following steps:

[0050] Step S1: When the cylindrical screen 5 is not loaded with manufactured sand, the torque of each cylindrical screen 5 under no-load conditions is obtained through the torque sensor 7. ;

[0051] Step S2: Place the rotating drum 4 into the manufactured sand and control the drive mechanism 8 connected to the corresponding cylindrical screen 5 to rotate, thereby screening the manufactured sand.

[0052] Step S3: When it is necessary to measure the weight of manufactured sand inside a certain cylindrical screen 5, obtain the angular acceleration of the rotating drum 4. Torque of cylindrical screen 5 when containing manufactured sand According to the formula and Weight of computer-generated sand .

[0053] The weighing method proposed in this invention is simple, convenient and easy to operate, and has high weighing efficiency.

[0054] The above are merely preferred embodiments of the present invention and do not limit the patent scope of the present invention. Any equivalent structural transformations made based on the description and drawings of the present invention, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of the present invention.

Claims

1. An automatic weighing and screening centrifugal screening device for processing manufactured sand, characterized in that, It includes a rotating drum, a cylindrical screen, side plates, a drive mechanism, and a torque sensor, among which, The rotating drum has at least two cylindrical screens inside, dividing the interior into multiple independent chambers. Each cylindrical screen's side is connected to a corresponding side plate. A drive mechanism is connected to the outer wall of the side plate to rotate the cylindrical screen. The drive mechanism is connected to a torque sensor. An angular acceleration sensor is installed on the rotating drum to calculate the weight of the material on each cylindrical screen by rotating it. The drum also includes an electrical box electrically connected to the drive mechanism and the angular acceleration sensor. The electrical box has an operation panel with four switches: slow screening, fast weighing, tilting, and reset. During automatic screening, pressing the slow screening button on the control panel of the electrical box starts the motor, driving the cylindrical screen to move slowly and irregularly, screening manufactured sand of different particle sizes into different chambers through cylindrical screens of different specifications. During automatic weighing, pressing the fast weighing button on the control panel starts the motor, driving the cylindrical screen and side plates to rotate rapidly around the circumference. The torque sensor collects the corresponding motor output torque, and the angular acceleration sensor collects the angular acceleration of the rotating drum. The weight of the manufactured sand in each chamber is calculated using a formula. The weight of the material on the cylindrical screen is... Calculate using the following formula: ， ； in, This represents the torque lost by the manufactured sand in the rotating drum. This indicates the torque of the cylindrical screen when it contains manufactured sand. This indicates the torque of the cylindrical screen when unloaded. The rotating drum is provided with a feed inlet and a discharge outlet, with the discharge outlet located on the side of the rotating drum away from the side plate; a support frame and a tilting mechanism are installed below the rotating drum, and the tilting mechanism is used to lift one side of the rotating drum.

2. The automatic weighing and screening centrifugal screening equipment for processed sand as described in claim 1, characterized in that, The motor of the tilting mechanism is electrically connected to the electrical box.

3. The automatic weighing and screening centrifugal screening equipment for processed sand as described in claim 1, characterized in that, All cylindrical screens are coaxial with the axis of the rotating drum.

4. The centrifugal screening equipment for automatic weighing and screening of manufactured sand as described in claim 1, characterized in that, The drive mechanism includes a motor.

5. The automatic weighing and screening centrifugal screening equipment for processed sand as described in any one of claims 1 to 4, characterized in that, The cylindrical screen has rectangular sieve holes.

6. A weighing method based on the automatic weighing and screening centrifugal screening equipment for manufactured sand processing according to any one of claims 1 to 5, characterized in that, Includes the following steps: When the cylindrical screens are not loaded with manufactured sand, the torque of each cylindrical screen under no-load conditions is obtained through a torque sensor. ; The rotating drum is filled with manufactured sand, and the drive mechanism connected to the corresponding cylindrical screen is controlled to rotate to screen the manufactured sand. When it is necessary to measure the weight of manufactured sand inside a cylindrical screen, the angular acceleration of the rotating drum is obtained. Torque of the cylindrical screen when containing manufactured sand According to the formula and Weight of computer-generated sand .

Images